Mitochondrial dynamics regulate mitochondrial activity through several pathways, but their coordination remains unclear. Zhao et al. (https://doi.org/10.1083/jcb.202508040) show that endosomal PI(3)P promotes CDC42-dependent actin polymerization on mitochondria, providing insight into the upstream signals regulating mitochondrial dynamics.
Hegde et al. (Fri,) studied this question.
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